怎么用java做汽车出租管理程序

车辆出租管理系统

一、项目功能：设计程序，可以管理各种出租汽车并计算其租金。

说明：程序主要管理货车类Truck 、客车类 Bus、小车类Car三中车辆

二、UML图：

三、源码：

abstract class Vehicle

{

protected String number;//车牌号

protected String type;//车类型

protected double value;//购车价格

protected double rentPrice;//租车单价

protected double rentKilometers;//租车里程数

protected double rent;//租金

public Vehicle(String number,String type,double value,double rentPrice)//设置车牌号、类型、价格、租车单价

{

this.number=number;

this.type=type;

this.value=value;

this.rentPrice=rentPrice;

}

public void setRentKilometers(double rentKilometers)//设置租车里程数

{ this.rentKilometers=rentKilometers;}

public double getRentKilometers()//返回租车里程数

{return rentKilometers;}

public abstract void calcuRent();//计算租金

public double getRent()//返回租金

{return rent;}

public void printBasicInfo()//返回车的基本信息

{

System.out.println("车牌："+number+"\t车类型："+type+"\t车价："+value+"万元"+"\t租车单价："+rentPrice);

}

public void printOtherInfo()//返回租车的信息

{ System.out.print("租车里程数："+rentKilometers);

System.out.print("\t租车单价："+rentPrice);

System.out.println("\t租金："+rent);

System.out.println();

}

}

class Truck extends Vehicle

{

private double tonnage;//货车的吨位数

public Truck(String number,String type,double value,double rentPrice,double tonnage)

{

super(number,type,value,rentPrice);//调用父类的构造器方法

this.tonnage=tonnage;//对自己的成员变量进行初始化

}

public double getTonnage()

{

return tonnage;

}

public void calcuRent()//计算租金

{ if(tonnage<10) rent=rentPrice*rentKilometers;

else rent=rentPrice*rentKilometers*1.5;

}

public void printOtherInfo()//返回租车的信息

{

System.out.print("货车租吨位："+tonnage);

System.out.print("\t租车单价："+rentPrice);

System.out.println("\t租金："+rent);

System.out.println();

}

}

class Bus extends Vehicle

{

int seats;//客车坐位数

int rentHours;//租车小时

public Bus(String number,String type,double value,double rentPrice,int seats)

{ super(number,type,value,rentPrice);//调用父类的构造器方法

this.seats=seats;

}

public void setRentHours(int rentHours)

{ this.rentHours=rentHours;

}

public int getRentHours()

{ return rentHours;

}

public int getSeats()

{ return seats;

}

public void calcuRent()

{ rentPrice=rentPrice*rentHours;

}

public void printOtherInfo()//返回租车的信息

{

System.out.print("客车租车时间："+rentHours);

System.out.print("\t租车单价："+rentPrice);

System.out.println("\t租金："+rent);

System.out.println();

}

}

class Car extends Vehicle

{

private int rentDays;

public Car(String number,String type,double value,double rentPrice)

{ super(number,type,value,rentPrice); //调用父类的构造器方法

}

public void setRentDays(int rentDays)

{ this.rentDays=rentDays;

}

public int getRentDays()

{ return rentDays;

}

public void calcuRent()

{ rentPrice=rentPrice* rentDays;

}

public void printOtherInfo()//返回租车的信息

{

System.out.print("小车租车天数："+rentDays);

System.out.print("\t租车单价："+rentPrice);

System.out.println("\t租金："+rent);

System.out.println();

}

}

public class TestCar

{

public static void main(String args[])

{

Truck truck1=new Truck("粤B 30234","小车",16,200,15.0);

Bus bus1=new Bus("粤B 30234","小车",16,200,50);

Car car1=new Car("粤B 30234","小车",16,200);

truck1.printBasicInfo();

bus1.printBasicInfo();

car1.printBasicInfo();

}

}

四、运行结果

、运行结果